[ViewVC] Diff of: cvs/gvpe/src/conf.C

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.c -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
35		43
36	#include <netinet/in.h>	44	#include "netcompat.h"
37		45
38	#include <openssl/err.h>	46	#include <openssl/err.h>
39	#include <openssl/pem.h>	47	#include <openssl/pem.h>
40	#include <openssl/rsa.h>	48	#include <openssl/rsa.h>
41	#include <openssl/rand.h>	49	#include <openssl/rand.h>
42		50	#include <openssl/bn.h>
43	#include "gettext.h"
44		51
45	#include "conf.h"	52	#include "conf.h"
46	#include "slog.h"	53	#include "slog.h"
47	#include "util.h"	54	#include "util.h"
48		55
49	char *confbase;	56	char *confbase;
50	char *thisnode;	57	char *thisnode;
51	char *identname;	58	char *identname;
52	char *pidfilename;
53		59
54	struct configuration conf;	60	struct configuration conf;
55		61
		62	u8
56	u8 best_protocol (u8 protset)	63	best_protocol (u8 protset)
57	{	64	{
58	if (protset & PROT_IPv4 ) return PROT_IPv4;	65	if (protset & PROT_IPv4 ) return PROT_IPv4;
		66	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
59	if (protset & PROT_UDPv4) return PROT_UDPv4;	67	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
60	if (protset & PROT_TCPv4) return PROT_TCPv4;	68	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		69	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
61		70
62	return 0;	71	return 0;
63	}	72	}
64		73
		74	const char *
65	const char *strprotocol (u8 protocol)	75	strprotocol (u8 protocol)
66	{	76	{
67	if (protocol & PROT_IPv4 ) return "rawip";	77	if (protocol & PROT_IPv4 ) return "rawip";
		78	if (protocol & PROT_ICMPv4) return "icmp";
68	if (protocol & PROT_UDPv4) return "udp";	79	if (protocol & PROT_UDPv4 ) return "udp";
		80	if (protocol & PROT_TCPv4 ) return "tcp";
		81	if (protocol & PROT_DNSv4 ) return "dns";
69		82
70	return "<unknown>";	83	return "<unknown>";
71	}	84	}
72		85
73	configuration::configuration ()	86	static bool
		87	match_list (const vector<const char > &list, const char str)
74	{	88	{
75	init ();	89	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
76	}	90	if ((i)[0] == '' && !(*i)[1])
		91	return true;
		92	else if (!strcmp (*i, str))
		93	return true;
77		94
78	configuration::~configuration ()	95	return false;
79	{
80	cleanup ();
81	}	96	}
82		97
		98	bool
		99	conf_node::may_direct (struct conf_node *other)
		100	{
		101	if (match_list (allow_direct, other->nodename))
		102	return true;
		103
		104	if (match_list (deny_direct, other->nodename))
		105	return false;
		106
		107	return true;
		108	}
		109
		110	void
		111	conf_node::print ()
		112	{
		113	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",
		114	id,
		115	id >> 8, id & 0xff,
		116	compress ? 'Y' : 'N',
		117	connectmode == C_ONDEMAND ? "ondemand"
		118	: connectmode == C_NEVER ? "never"
		119	: connectmode == C_ALWAYS ? "always"
		120	: connectmode == C_DISABLED ? "disabled"
		121	: "",
		122	nodename,
		123	hostname ? hostname : "",
		124	hostname ? ":" : "",
		125	hostname ? udp_port : 0
		126	);
		127	}
		128
		129	conf_node::~conf_node ()
		130	{
		131	#if 0
		132	// does not work, because string pointers etc. are shared
		133	// is not called, however
		134	if (rsa_key)
		135	RSA_free (rsa_key);
		136
		137	free (nodename);
		138	free (hostname);
		139	free (if_up_data);
		140	#if ENABLE_DNS
		141	free (domain);
		142	free (dns_hostname);
		143	#endif
		144	#endif
		145	}
		146
		147	void
83	void configuration::init ()	148	configuration::init ()
84	{	149	{
85	memset (this, 0, sizeof (*this));	150	memset (this, 0, sizeof (*this));
86		151
		152	mtu = DEFAULT_MTU;
		153	nfmark = 0;
87	rekey = DEFAULT_REKEY;	154	rekey = DEFAULT_REKEY;
88	keepalive = DEFAULT_KEEPALIVE;	155	keepalive = DEFAULT_KEEPALIVE;
89	llevel = L_INFO;	156	llevel = L_INFO;
90	ip_proto = IPPROTO_GRE;	157	ip_proto = IPPROTO_GRE;
		158	#if ENABLE_ICMP
		159	icmp_type = ICMP_ECHOREPLY;
		160	#endif
91		161
92	default_node.udp_port = DEFAULT_UDPPORT;	162	default_node.udp_port = DEFAULT_UDPPORT;
93	default_node.tcp_port = DEFAULT_UDPPORT;	163	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
94	default_node.connectmode = conf_node::C_ALWAYS;	164	default_node.connectmode = conf_node::C_ALWAYS;
95	default_node.compress = true;	165	default_node.compress = true;
96	default_node.protocols = PROT_UDPv4;	166	default_node.protocols = 0;
97	}	167	default_node.max_retry = DEFAULT_MAX_RETRY;
		168	default_node.max_ttl = DEFAULT_MAX_TTL;
		169	default_node.max_queue = DEFAULT_MAX_QUEUE;
		170	default_node.if_up_data = strdup ("");
98		171
		172	#if ENABLE_DNS
		173	default_node.dns_port = 0; // default is 0 == client
		174
		175	dns_forw_host = strdup ("127.0.0.1");
		176	dns_forw_port = 53;
		177	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		178	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		179	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		180	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		181	#endif
		182
		183	conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		184	}
		185
		186	void
99	void configuration::cleanup()	187	configuration::cleanup ()
100	{	188	{
101	if (rsa_key)	189	if (rsa_key)
102	RSA_free (rsa_key);	190	RSA_free (rsa_key);
103		191
104	free (ifname);
105
106	rsa_key = 0;	192	rsa_key = 0;
107	ifname = 0;	193
		194	free (pidfilename); pidfilename = 0;
		195	free (ifname); ifname = 0;
		196	#if ENABLE_HTTP_PROXY
		197	free (proxy_host); proxy_host = 0;
		198	free (proxy_auth); proxy_auth = 0;
		199	#endif
		200	#if ENABLE_DNS
		201	free (dns_forw_host); dns_forw_host = 0;
		202	#endif
		203	free (script_if_up); script_if_up = 0;
		204	free (script_node_up); script_node_up = 0;
		205	free (script_node_change); script_node_change = 0;
		206	free (script_node_down); script_node_down = 0;
108	}	207	}
109		208
110	void	209	void
111	configuration::clear_config ()	210	configuration::clear ()
112	{	211	{
113	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	212	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
114	delete *i;	213	delete *i;
115		214
116	nodes.clear ();	215	nodes.clear ();
117		216
118	cleanup ();	217	cleanup ();
119	init ();	218	init ();
120	}	219	}
121		220
122	#define parse_bool(target,name,trueval,falseval) \	221	#define parse_bool(target,name,trueval,falseval) do { \
123	if (!strcmp (val, "yes")) target = trueval; \	222	if (!strcmp (val, "yes")) target = trueval; \
124	else if (!strcmp (val, "no")) target = falseval; \	223	else if (!strcmp (val, "no")) target = falseval; \
125	else if (!strcmp (val, "true")) target = trueval; \	224	else if (!strcmp (val, "true")) target = trueval; \
126	else if (!strcmp (val, "false")) target = falseval; \	225	else if (!strcmp (val, "false")) target = falseval; \
127	else if (!strcmp (val, "on")) target = trueval; \	226	else if (!strcmp (val, "on")) target = trueval; \
128	else if (!strcmp (val, "off")) target = falseval; \	227	else if (!strcmp (val, "off")) target = falseval; \
129	else \	228	else \
130	slog (L_WARN, \	229	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed. (ignored)"); \
131	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	230	} while (0)
132	name, var, fname, lineno);
133		231
134	void configuration::read_config (bool need_keys)	232	const char *
		233	configuration_parser::parse_line (char *line)
		234	{
		235	{
		236	char *end = line + strlen (line);
		237
		238	while (*end < ' ' && end >= line)
		239	end--;
		240
		241	*++end = 0;
		242	}
		243
		244	char *tok = line;
		245	const char *var = strtok (tok, "\t =");
		246	tok = 0;
		247
		248	if (!var \|\| !var[0])
		249	return 0; /* no tokens on this line */
		250
		251	if (var[0] == '#')
		252	return 0; /* comment: ignore */
		253
		254	char *val = strtok (NULL, "\t\n\r =");
		255
		256	if (!val \|\| val[0] == '#')
		257	return _("no value given for variable. (ignored)");
		258
		259	if (!strcmp (var, "on"))
		260	{
		261	if (!::thisnode
		262	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
		263	\|\| !strcmp (val, ::thisnode))
		264	return parse_line (strtok (NULL, "\n\r"));
		265	else
		266	return 0;
		267	}
		268
		269	// truly global
		270	if (!strcmp (var, "loglevel"))
		271	{
		272	loglevel l = string_to_loglevel (val);
		273
		274	if (l == L_NONE)
		275	return _("unknown loglevel. (skipping)");
		276	}
		277	else if (!strcmp (var, "ip-proto"))
		278	conf.ip_proto = atoi (val);
		279	else if (!strcmp (var, "icmp-type"))
		280	{
		281	#if ENABLE_ICMP
		282	conf.icmp_type = atoi (val);
		283	#endif
		284	}
		285
		286	// per config
		287	else if (!strcmp (var, "node"))
		288	{
		289	parse_argv ();
		290
		291	conf.default_node.id++;
		292	node = new conf_node (conf.default_node);
		293	conf.nodes.push_back (node);
		294	node->nodename = strdup (val);
		295
		296	{
		297	char *fname;
		298	FILE *f;
		299
		300	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		301
		302	f = fopen (fname, "r");
		303	if (f)
		304	{
		305	node->rsa_key = RSA_new ();
		306
		307	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
		308	{
		309	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		310	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		311	exit (EXIT_FAILURE);
		312	}
		313
		314	require (RSA_blinding_on (node->rsa_key, 0));
		315
		316	fclose (f);
		317	}
		318	else
		319	{
		320	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		321
		322	if (need_keys)
		323	exit (EXIT_FAILURE);
		324	}
		325
		326	free (fname);
		327	}
		328
		329	if (::thisnode && !strcmp (node->nodename, ::thisnode))
		330	conf.thisnode = node;
		331	}
		332	else if (!strcmp (var, "private-key"))
		333	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		334	else if (!strcmp (var, "ifpersist"))
		335	parse_bool (conf.ifpersist, "ifpersist", true, false);
		336	else if (!strcmp (var, "ifname"))
		337	free (conf.ifname), conf.ifname = strdup (val);
		338	else if (!strcmp (var, "rekey"))
		339	conf.rekey = atoi (val);
		340	else if (!strcmp (var, "keepalive"))
		341	conf.keepalive = atoi (val);
		342	else if (!strcmp (var, "mtu"))
		343	conf.mtu = atoi (val);
		344	else if (!strcmp (var, "nfmark"))
		345	conf.nfmark = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "http-proxy-host"))
		393	{
		394	#if ENABLE_HTTP_PROXY
		395	free (conf.proxy_host), conf.proxy_host = strdup (val);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-port"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	conf.proxy_port = atoi (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-auth"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		408	#endif
		409	}
		410
		411	/* node-specific, non-defaultable */
		412	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		413	free (node->hostname), node->hostname = strdup (val);
		414
		415	/* node-specific, defaultable */
		416	else if (!strcmp (var, "udp-port"))
		417	node->udp_port = atoi (val);
		418	else if (!strcmp (var, "tcp-port"))
		419	node->tcp_port = atoi (val);
		420	else if (!strcmp (var, "dns-hostname"))
		421	{
		422	#if ENABLE_DNS
		423	free (node->dns_hostname), node->dns_hostname = strdup (val);
		424	#endif
		425	}
		426	else if (!strcmp (var, "dns-port"))
		427	{
		428	#if ENABLE_DNS
		429	node->dns_port = atoi (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-domain"))
		433	{
		434	#if ENABLE_DNS
		435	free (node->domain), node->domain = strdup (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "if-up-data"))
		439	free (node->if_up_data), node->if_up_data = strdup (val);
		440	else if (!strcmp (var, "router-priority"))
		441	node->routerprio = atoi (val);
		442	else if (!strcmp (var, "max-retry"))
		443	node->max_retry = atoi (val);
		444	else if (!strcmp (var, "connect"))
		445	{
		446	if (!strcmp (val, "ondemand"))
		447	node->connectmode = conf_node::C_ONDEMAND;
		448	else if (!strcmp (val, "never"))
		449	node->connectmode = conf_node::C_NEVER;
		450	else if (!strcmp (val, "always"))
		451	node->connectmode = conf_node::C_ALWAYS;
		452	else if (!strcmp (val, "disabled"))
		453	node->connectmode = conf_node::C_DISABLED;
		454	else
		455	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)");
		456	}
		457	else if (!strcmp (var, "inherit-tos"))
		458	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		459	else if (!strcmp (var, "compress"))
		460	parse_bool (node->compress, "compress", true, false);
		461	// all these bool options really really cost a lot of executable size!
		462	else if (!strcmp (var, "enable-tcp"))
		463	{
		464	#if ENABLE_TCP
		465	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		466	#endif
		467	}
		468	else if (!strcmp (var, "enable-icmp"))
		469	{
		470	#if ENABLE_ICMP
		471	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-dns"))
		475	{
		476	#if ENABLE_DNS
		477	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-udp"))
		481	{
		482	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		483	}
		484	else if (!strcmp (var, "enable-rawip"))
		485	{
		486	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		487	}
		488	else if (!strcmp (var, "allow-direct"))
		489	node->allow_direct.push_back (strdup (val));
		490	else if (!strcmp (var, "deny-direct"))
		491	node->deny_direct.push_back (strdup (val));
		492	else if (!strcmp (var, "max-ttl"))
		493	node->max_ttl = atof (val);
		494	else if (!strcmp (var, "max-queue"))
		495	node->max_queue = atoi (val);
		496
		497	// unknown or misplaced
		498	else
		499	return _("unknown configuration directive. (ignored)");
		500
		501	return 0;
		502	}
		503
		504	void
		505	conf_node::finalise ()
		506	{
		507	if (max_queue < 1)
		508	{
		509	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		510	max_queue = 1;
		511	}
		512
		513	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		514	{
		515	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		516	connectmode = C_ALWAYS;
		517	}
		518	}
		519
		520	void
		521	configuration_parser::parse_argv ()
		522	{
		523	for (int i = 0; i < argc; ++i)
		524	{
		525	char *v = argv [i];
		526
		527	if (!*v)
		528	continue;
		529
		530	char *enode = v;
		531
		532	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		533	enode++;
		534
		535	if (*enode != '.')
		536	enode = 0;
		537
		538	char *wnode = node == &conf.default_node
		539	? 0
		540	: node->nodename;
		541
		542	if ((!wnode && !enode)
		543	\|\| (wnode && enode && !strncmp (wnode, v, enode - v)))
		544	{
		545	const char *warn = parse_line (enode ? enode + 1 : v);
		546
		547	if (warn)
		548	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		549
		550	*v = 0;
		551	}
		552	}
		553	}
		554
		555	configuration_parser::configuration_parser (configuration &conf,
		556	bool need_keys,
		557	int argc,
		558	char **argv)
		559	: conf (conf),need_keys (need_keys), argc (argc), argv (argv)
135	{	560	{
136	char *fname;	561	char *fname;
137	FILE *f;	562	FILE *f;
138		563
139	clear_config ();	564	conf.clear ();
140		565
141	asprintf (&fname, "%s/vped.conf", confbase);	566	asprintf (&fname, "%s/gvpe.conf", confbase);
142	f = fopen (fname, "r");	567	f = fopen (fname, "r");
143		568
144	if (f)	569	if (f)
145	{	570	{
146	char line[16384];	571	char line[16384];
147	int lineno = 0;	572	int lineno = 0;
148	char var, val;	573	node = &conf.default_node;
149	conf_node *node = &default_node;
150		574
151	while (fgets (line, sizeof (line), f))	575	while (fgets (line, sizeof (line), f))
152	{	576	{
153	lineno++;	577	lineno++;
154		578
155	{	579	const char *warn = parse_line (line);
156	char *end = line + strlen (line);
157		580
158	while (*end < ' ' && end >= line)	581	if (warn)
159	end--;	582	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
160
161	*++end = 0;
162	}
163
164	char *tok = line;
165
166	retry:
167	var = strtok (tok, "\t =");
168	tok = 0;
169
170	if (!var \|\| !var[0])
171	continue; /* no tokens on this line */
172
173	if (var[0] == '#')
174	continue; /* comment: ignore */
175
176	val = strtok (NULL, "\t\n\r =");
177
178	if (!val \|\| val[0] == '#')
179	{
180	slog (L_WARN,
181	_("no value for variable `%s', at '%s' line %d"),
182	var, fname, lineno);
183	break;
184	}
185
186	if (!strcmp (var, "on"))
187	{
188	if (!::thisnode
189	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
190	\|\| !strcmp (val, ::thisnode))
191	goto retry;
192
193	continue;
194	}
195
196	// truly global
197	if (!strcmp (var, "loglevel"))
198	{
199	loglevel l = string_to_loglevel (val);
200
201	if (l != L_NONE)
202	llevel = l;
203	else
204	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
205	}
206	else if (!strcmp (var, "ip-proto"))
207	ip_proto = atoi (val);
208
209	// per config
210	else if (!strcmp (var, "node"))
211	{
212	default_node.id++;
213
214	node = new conf_node (default_node);
215
216	nodes.push_back (node);
217
218	node->nodename = strdup (val);
219
220	{
221	char *fname;
222	FILE *f;
223
224	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
225
226	f = fopen (fname, "r");
227	if (f)
228	{
229	node->rsa_key = RSA_new ();
230
231	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
232	{
233	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
234	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
235	exit (1);
236	}
237
238	RSA_blinding_on (node->rsa_key, 0);
239
240	fclose (f);
241	}
242	else
243	{
244	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
245
246	if (need_keys)
247	exit (1);
248	}
249
250	free (fname);
251	}
252
253	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
254	thisnode = node;
255	}
256	else if (!strcmp (var, "private-key"))
257	prikeyfile = strdup (val);
258	else if (!strcmp (var, "ifpersist"))
259	{
260	parse_bool (ifpersist, "ifpersist", true, false);
261	}
262	else if (!strcmp (var, "ifname"))
263	ifname = strdup (val);
264	else if (!strcmp (var, "rekey"))
265	rekey = atoi (val);
266	else if (!strcmp (var, "keepalive"))
267	keepalive = atoi (val);
268	else if (!strcmp (var, "mtu"))
269	mtu = atoi (val);
270	else if (!strcmp (var, "if-up"))
271	script_if_up = strdup (val);
272	else if (!strcmp (var, "node-up"))
273	script_node_up = strdup (val);
274	else if (!strcmp (var, "node-down"))
275	script_node_down = strdup (val);
276
277	/* node-specific, non-defaultable */
278	else if (node != &default_node && !strcmp (var, "hostname"))
279	{
280	free (node->hostname);
281	node->hostname = strdup (val);
282	}
283
284	/* node-specific, defaultable */
285	else if (!strcmp (var, "udp-port"))
286	node->udp_port = atoi (val);
287	else if (!strcmp (var, "tcp-port"))
288	node->tcp_port = atoi (val);
289	else if (!strcmp (var, "router-priority"))
290	node->routerprio = atoi (val);
291	else if (!strcmp (var, "connect"))
292	{
293	if (!strcmp (val, "ondemand"))
294	node->connectmode = conf_node::C_ONDEMAND;
295	else if (!strcmp (val, "never"))
296	node->connectmode = conf_node::C_NEVER;
297	else if (!strcmp (val, "always"))
298	node->connectmode = conf_node::C_ALWAYS;
299	else if (!strcmp (val, "disabled"))
300	node->connectmode = conf_node::C_DISABLED;
301	else
302	slog (L_WARN,
303	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
304	var, fname, lineno);
305	}
306	else if (!strcmp (var, "inherit-tos"))
307	{
308	parse_bool (node->inherit_tos, "inherit-tos", true, false);
309	}
310	else if (!strcmp (var, "compress"))
311	{
312	parse_bool (node->compress, "compress", true, false);
313	}
314	// all these bool options really really cost a lot of executable size!
315	else if (!strcmp (var, "enable-tcp"))
316	{
317	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
318	}
319	else if (!strcmp (var, "enable-udp"))
320	{
321	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
322	}
323	else if (!strcmp (var, "enable-rawip"))
324	{
325	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
326	}
327
328	// unknown or misplaced
329	else
330	{
331	slog (L_WARN,
332	_("unknown or misplaced variable `%s', at '%s' line %d"),
333	var, fname, lineno);
334	}
335	}	583	}
336		584
337	fclose (f);	585	fclose (f);
		586
		587	parse_argv ();
338	}	588	}
339	else	589	else
340	{	590	{
341	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	591	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
342	exit (1);	592	exit (EXIT_FAILURE);
343	}	593	}
344		594
345	free (fname);	595	free (fname);
346		596
347	fname = config_filename (prikeyfile, "hostkey");	597	fname = conf.config_filename (conf.prikeyfile, "hostkey");
348		598
349	f = fopen (fname, "r");	599	f = fopen (fname, "r");
350	if (f)	600	if (f)
351	{	601	{
352	rsa_key = RSA_new ();	602	conf.rsa_key = RSA_new ();
353		603
354	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	604	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
355	{	605	{
356	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	606	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
357	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	607	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
358	exit (1);	608	exit (EXIT_FAILURE);
359	}	609	}
360		610
361	RSA_blinding_on (rsa_key, 0);	611	require (RSA_blinding_on (conf.rsa_key, 0));
362		612
363	fclose (f);	613	fclose (f);
364	}	614	}
365	else	615	else
366	{	616	{
367	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));	617	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
368		618
369	if (need_keys)	619	if (need_keys)
370	exit (1);	620	exit (EXIT_FAILURE);
		621	}
		622
		623	if (need_keys && ::thisnode
		624	&& conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key)
		625	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		626	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		627	{
		628	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		629	exit (EXIT_FAILURE);
371	}	630	}
372		631
373	free (fname);	632	free (fname);
374	}
375		633
		634	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		635	(*i)->finalise ();
		636	}
		637
		638	char *
376	char configuration::config_filename (const char name, const char *dflt)	639	configuration::config_filename (const char name, const char dflt)
377	{	640	{
378	char *fname;	641	char *fname;
379		642
380	asprintf (&fname, name ? name : dflt, ::thisnode);	643	asprintf (&fname, name ? name : dflt, ::thisnode);
381		644
…		…
398	printf (_("MTU: %d\n"), mtu);	661	printf (_("MTU: %d\n"), mtu);
399	printf (_("rekeying interval: %d\n"), rekey);	662	printf (_("rekeying interval: %d\n"), rekey);
400	printf (_("keepalive interval: %d\n"), keepalive);	663	printf (_("keepalive interval: %d\n"), keepalive);
401	printf (_("interface: %s\n"), ifname);	664	printf (_("interface: %s\n"), ifname);
402	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	665	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
403	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1);	666	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
404	printf ("\n");	667	printf ("\n");
405		668
406	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	669	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",
407	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	670	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));
408		671
…		…
410	(*i)->print ();	673	(*i)->print ();
411		674
412	printf ("\n");	675	printf ("\n");
413	}	676	}
414		677
415	void	678	configuration::configuration ()
416	conf_node::print ()
417	{	679	{
418	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	680	asprintf (&confbase, "%s/gvpe", CONFDIR);
419	id,
420	id >> 8, id & 0xff,
421	compress ? 'Y' : 'N',
422	connectmode == C_ONDEMAND ? "ondemand" :
423	connectmode == C_NEVER ? "never" :
424	connectmode == C_ALWAYS ? "always" : "",
425	nodename,
426	hostname ? hostname : "",
427	hostname ? ":" : "",
428	hostname ? udp_port : 0
429	);
430	}
431		681
		682	init ();
		683	}
		684
		685	configuration::~configuration ()
		686	{
		687	cleanup ();
		688	}
		689

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing gvpe/src/conf.C (file contents): Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs. Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.9 by pcg, Wed Apr 2 05:14:59 2003 UTC vs.
Revision 1.52 by root, Tue Feb 8 23:11:35 2011 UTC